Check device for vehicle-poles.



UNITED STATES Patented May 3, 1904.

PATENT OFFICE.

CHECK DEVICE FOR- VEHlCLE-POLES.

SPECIFICATION forming part of Letters Patent N 0. 758,979, dated May 3, 1904,

Application filed September 11, 1903. Serial No. 172,777. (No model.) I

To all whom, it may concern:

Be it known that I, GEORGE A. LAMBERT, a citizen of the United States, residing at Anderson, in the county of Madison and State of Indiana, have invented certain new and useful Improvements in Steel Pole-Straps, of which the following is a clear and exact description, in which Figure 1 is plan view of a vertical poleprovided with my improvements. side elevation thereof. view of the strap.

The object of this invention is to obviate the use of a leather check-strap for connecting'the doubletree to the circle and to provide as a substitute therefor a cheaper and more durable strap, as more fully hereinafter set forth.

In lieu of the ordinary leather strap I propose employing a thin steel connection between the doubletree and the circle or crossbar at either side of the pole where theleather straps are now commonly attached, this strap being preferably flat, so that it will bow or flex as the whiifletree oscillates on its vertical pivot. p

In the drawings the straps are designated by the letter a, and in Figs. 1 and 2 they are shown connected rigidly directly to the doubletree and the circle; but in Fig. 3 the strap is shown connected to eyes or loops 6, which are in turn rigidly connected, respectively, to the doubletree and the circle, the connection to these eyes or loops being made by simply bending the ends of the strap back upon themselves and riveting them, thus forming loops in the ends of the straps, in which the crossbars of the eyes have a pivotal-action.

It will be observed that the straps are arranged so that their flat sides face upward and downward and that they are slightly longer than the'distance between the doubletree and Fig. 2 is a Fig. 3 is adetail plan the point of attachment to the circle, so that normally these straps are bowed or flexed. Thus making the straps longer than the distance between the two points of attachment affords the necessary length to permit the doubletree to swing the requireddistance on. its pivot, this distance in practice being but three or four inches.

It will be observed that when the doubletree is vibrated one of the straps will straighten out and limit the movement of the doubletree, while the other one will bow or curve naturally and without kinking or buckling.

The substitution of these steel straps will effect a great saving over the leather straps now universally employed.

Instead of employing the circle cross-bar shown in the drawings it will be observed that I may use the straps in connection with the ordinary straight cross-bar with equal advantage. Therefore I wish it understood that my claims are not restricted in this respect.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In combination, with a vehicle-pole carrying an oscillating doubletree and a crossbar, of a pair of spring-steel check straps or rods connecting the opposite ends of the doubletree to the circle, for the purposes set forth.

2. In combination, with a vehicle-pole carrying an oscillating doubletree and .a crossbar, of a pair of fiat spring-steel straps connecting the doubletree to the circle, for the purposes set forth.

3. In combination, with a vehicle-pole carrying the doubletree and the cross-bar, of a pair of spring-steel rods or straps connecting the doubletree to the circle, these rods or straps being longer than'the distance between their point of connection so that they shall be normally bowed, for the purposes set forth.

4. In combination, a vehicle-pole carrying a doubletree, and a cross-bar, spring-straps extending from the doubletree to the crossbar, and loops or eyes attached respectively to the cross-bar and the doubletree and pivotally connected to the ends of the straps.

In testimony whereof I hereunto aifix my signature, in the presence of two witnesses, this 8th day of September, 1903.

GEORGE A. LAMBERT.

Witnesses IDA KIRK, CLARIssA HETZLER. 

